Spinning bobbin



May 8, 1934. H. e. STONE SPINNING BOBBIN Filed July 11, 1932 amnion v Herberfia 510128,

Patented May 8, E934 PATENT OFFICE SPINNING BOBBIN Herbert G. Stone, Kingsport, Tenn assignor to Eastman Kodak Company, Rochester, N. Y., a corporation of New York Application July 11, 1932, Serial No. 621,799

10 Claims. (01.242-118) This invention relates to spinning machine bobbins and particularly to spinning machine bobbins for artificial silk handling and manufacturing machines. One object of my invention is to provide a bobbin which is constructed to prevent lubricating material from coming in contact with the yarn. Another object of my inventionv is to provide a bobbin with a receptacle for excess lubrication which can be cleaned out at intervals. Another object of my invention is to provide a bobbin with a handle to facilitate handling the bobbin and one which will tend to keep the operators hand away from the yarn wound on the bob bin. Another object of my invention is to provide a bobbin with a suitable connection with a revolving whorl and to provide a means for suitably lubricating the bobbin support.

Still another object of my invention is to provide a bob binwith an oil-receiving receptacle, this receptacle being so arranged that it may be removed for the ing cleaning, and other objects will appear from following description, the novel features beparticularly pointed out in the claims at the end thereof. Coming now to the drawing, wherein like reference characters denote like parts throughout:

Fig. 1 is a fragmentary view of an artificial silk,

handling machine on which a bobbin constructed in accordance with and embodying a preferred iorm of my invention is shown in section.

Fig. 2 is a side elevation of the bobbin shown spools high speed to used with cap-spinning machines the bobbins or which must be rotated at a comparatively wind the yarn thereon and when spools must be moved axially of their supporting shaft as well as rotated so that convolutions of am will be placed evenly over the entire spool. Since the bobbin must necessarily rotate at a high speed and move up and down upon a shaft, it is difilcult to properly lubricate a bobbin structure without having some or the lubricating materi the

the

al work out through the end of the spool over flanges from which it may be transierred to yarn on the bobbin. The usual place where lubricating material, such as oil, would gradually work through is at the top of the bobbin or spool, since the oil works up the shaft as the bobbin is moved axially of the shaft. Oil, therefore, frequently gets over the upper flange of the bobbin $0 and either runs down on the yarn or may be transferred to it by the fingers of an operator.

My new bobbin is designed particularly to overcome these dimculties.

Broadly speaking, my invention comprises or forming within the bobbin an oil chamber adapted to receive the excess lubricating material and adapted to prevent it from coming in contact with the outside portion of the bobbin or spool. I also provide a handle on the end of the bobbin by which it may be manipulated so that the fin-- gers of an operator, if they should become oily, will not transfer the oil to a point close to the yarn. Referring to Fig. 2, a preferred form oi. bobbin may consist of a central hub portion 1, having a flange 2 attached to one end, and a flange 3 attached to the opposite end, the yarn being normally wound upon the hub member 1 between these flanges. I provide a handle a on the upper end of the bobbin by which it may be manipulated and inside of this handle there is an oil chamber 6, as best shown in Fig. l.

I prefer to form the handle or enlargements. on the end of a tubular member 7 which fits snugly into an aperture 8 formed in the core 1 of the bobbin. From the opening 8 there may extend downwardly through the core an opening 9 which connects to still a third opening 10. lin the form of my invention shown in Fig. 1, the openings 8, 9 and 10 are of progressively smaller diameters. The inside 11 of the tubular member 7 is of a size to snugly fit a bronze tube 12 and the upper end of the knob 4 is provided with an opening l3 which permits the fixed spindle i l to pass freely therethrough. Thus the portions 10 and 11 of the bobbin 1 form bearings which engage the bronze tube 12.

' The bobbin i does not turn upon the bronze tube 12, but turns with it as the bronze tube is attached to turn with the revolving whorl 15. The whorl 15 is providedwlth a key 16 fitting into a suitable slot 17 in the flange 2. As the whorl is revolved at a high speed, as by a belt in a well known manner, the bronze tube. 12 is likewise turned at a high speed and the spool 1 rotates with these rotating members. Not only does the spool rotate but the whorl 15, bronze tube 12 and spool 1 are moved axially of the fixed shaft 14 by means of the traverse bar 18. This bar, as best shown in Fig. 4, moves up and down between the positions P and P as the machine operates, so that convolutions of thread may be lead evenly upon the core 1.

The whorl may be provided with the usual type of whorl brake shoe 19, and column 20, and there may also be the usual type of lubricating felt washers 21 and 22 surrounding the fiber lubricating washer 23.

As is customary with machines of this type, the fixed spindle 14 is securely attached to the spindle rail 24 and is held in a fixed position by nuts and 26.

While the bobbin 1, constructed in accordance .with my invention, may be turned from a single piece of wood, I have found that a bobbin built up from a number of pieces is generally more satisfactory and, accordingly, will describe a preferred form-of my invention. The lower flange 2 may be made of suitable wood, such as dogwood, and may be provided with a fiber or metal'annular protecting ring 32. This flange may be united to the hub in any suitable manner, such as by a flange and slot connection at 33. The hub member 1 may be constructed of wood, but I prefer to form the upper flange 3 of an annular metal or hard fibre member 34 which may be attached to the hub in any well known manner.

The handle 4, which merely consists of an enlarged end on the tubular member 7, maybe either definitely attached to the hub or may have a relatively tight sliding fit therewith, so that this member can be withdrawn.

In any event, the tubular member 7 should engagethe bore 8 of the hub sufliciently tightly to permit the spool 1 being manipulated by the handle.

The operation of a bobbin or spindle constructed in accordance with my invention isas follows. An operator places a bobbin on the whorl by sliding it down over the bronze tube 12 in such a manner that the bearings 10 and 7 engage the outside of the bronze tube. V After the machine has been put in operation thread may be evenly guided upon the rapidly rotatingbobbin 1 by means of the bottom E of the cap C. Any well known type of cap can be used on the fixed spindle 14, as diagrammatically illustrated in Fig. 4. The traverse bar 18 moves'the spindle 1 up and down as it rotates so that oil or lubricating material will work up from the lubricating felt pads 21 and 22 between the bronze tube 12 and the flxed spindle 14. Small quantities of lubricating material continually work over the upper end of the bronze tube 12 and unless caught by a suitable receptacle would be drawn by centrifugal force over the ends of the flange 3. Small quantities of oil might then be readily transferred to the yarn on the spindle by the hands of an operator, or might actually run down onto the yarn.

However, with my improved spool the hollowed out oil recess 6 will retain the oil which has worked up through the bronze tube 12 because the centrifugal force throws it outwardly against the walls of the oil receptacle. The upperedge of the enlargement 4 encircles the fixed rod 14. Consequently there is very little opportunity for the oil to work up through this part of the apparatus and moreover the centrifugal force tends to'hold the lubricating material along the outermost edges ,6 of the oil container where it is at its largest diameter.

'After the yarn has been properly wound upon the spool it:.may be'removed by means of the handle 4. Any oil which is in.the oil receptacle 6 adapted to engage a support and extending throughout the length of the bobbin, an elongation on the end of the hub member extending beyond the bearingand including a recess of greater diameter than the bearing and adapted to collect oil.

2. A bobbin for spinning machines comprising a hub member, a bearing inside the hub member adapted to engage a support and extending throughout the length of the bobbin, an elongation on the end of the hub member extending beyond the bearing including a recess of greater diameter than the support and adapted to collect oil, said recess being of greater diameter than the bearing and of greater diameter at the center than towards the end thereof whereby said recess is adapted to retain as well as to collect oil from the support. I

3. A bobbin for spinning machines including, in combination a hub member, including a central bore, a bearing in said bore and extending throughout the length of the bobbin for a sup-- port, a tubular member projecting from said bore and extending beyond the bearing and having an enlarged end provided with a bore of .greater diameter than the bearing, said tubular member being movably mounted on said hub.

4. In a bobbin for spinning machines the combination with a hub including an opening extending therethrough, of a bearing mounted in a part of said opening and extending throughout the bobbin, a tubular member including an enlarged end also mounted in a part of said opening and telescoping a part of said bearing with the enlarged end extending beyond one end of said bearing, said enlarged end including an opening of greater diameter than-said bearing.

5. In a bobbin for spinning machines the combination with a hub including an opening ex-v tending therethrough, ofa sleeve mounted in a part of said opening, a tubular member including an enlarged end also mounted in a part of said opening, said enlarged end including an opening of greater diameter than said sleeve so located that said enlarged opening lies opposite an end of said sleeve whereby oil working up through said sleeve may be retained in said enlarged opening.

6. In a bobbin for spinning bination with a hub including an opening extending therethrough, of a sleeve mounted in a. part of said opening, a tubular member including-an enlarged end also mounted in a part of said opening, said enlarged end including an elongated opening of greater diameter than the sleeve at the medial portion thereof and of less diameter at the ends than at the medial portion thereof, whereby a centrifugal force rotating said bobbin may tend to retain oil in said elongated opening.

machines the com- -7. A bobbin for spinning machines including,

a bearing inside of the central bore-and hub and a handle adapted to be supported in said central bore, said handle comprising a hollow knob having a greater diameter in a portion of the hollow knob of greater diameter thansaid bearing at that end lying adjacent said bearing and having an oil retaining flange at the opposite end of the hollow portion, whereby said hollow knob is adapted to receive lubricating material working up through the bearing.

8. A bobbin for spinning machines including,

in combination, a hub, flanges on the hub with a core and end flanges and an extension beyond one o! the end flanges having an outside handle portion, all rigidly connected and having an axial opening throughout the entire length of the bobbin including the extension, said opening having P rtions of the same uniform diameter for a distance near each endv and 01- greater diameter intermediate the said portions of uniform diameter, the bobbin havingat the end opposite the handle a conformation adapted for engagement with a driving member.

l0. A bobbin for spinning machines comprising a core having an axial opening having three' portions or successively greater diameters, an extension block having an axial opening of the same diameter as the portion of the axial opening of the core havingthe smallest diameter, the extension block including a portion'having an exterior diameter fitting tightly in the portion of the axial opening or the core of greatest diameter and having an extension of greater diameter protruding from the end of the core, and a flange at the end of the core and having an axial opening surrounding the extension block.

; HERBERT G. STONE.

his 

